In the present work for the first time polydimethylsiloxanes containing a rigid segment based on N,N-(ethane-1,2-diyl)diundec-10-enamide in the main chain were synthesized by hydrosilylation and hydrothiolation reactions. As a result, oligomers and polymers with various molecular weights from 3000 to 52000 (g mol⁻¹, GPC) were obtained. The thermal properties of the obtained copolymers were investigated by TGA and DSC analysis.

All PDMS copolymers containing different amounts of diamide fragments exhibit properties that are distinct from pure polydimethylsiloxane, which indicates a significant influence of a rigid fragment capable of forming hydrogen bonds on the phase behavior of the resulting copolymers.

在本工作中，首次通过氢化硅烷化和氢硫基化反应合成了在主链中包含基于N，N-（乙烷-1,2-二基）二十一碳烯-10-酰胺的刚性链段的聚二甲基硅氧烷。结果，获得具有3000至52000（g mol ^-1，GPC）的各种分子量的低聚物和聚合物。通过TGA和DSC分析研究所得共聚物的热性能。

所有含有不同量的二酰胺片段的PDMS共聚物均具有与纯聚二甲基硅氧烷不同的性能，这表明能够形成氢键的刚性片段对所得共聚物的相行为有重大影响。